precedence of boundary file over blockMeshDict

bfiedler · January 28, 2011, 15:23

In the OpenFoam tutorials, Allclean deletes the following files in constant/polyMesh: "points", "owner", "neighbour", "faces" but not the file "boundary". The blockMesh utility will overwrite "boundary", but will first read "boundary" and preserve that patch type that is found, igonoring what is found in blockMeshDict. Thus, changing type wall to type cyclic in blockMeshDict will have no effect on type found in the "boundary" file. Options to change file type are to manually delete the "boundary" file (better for newbies to save it by renaming it) or to manually edit it. What is the purpose of the blockMesh utility behaving this way? The official documentation http://www.openfoam.com/docs/user/blockMesh.php does not describe this behaviour.

immortality · January 22, 2013, 07:16

hi.i have same question.did you find a ratioanal answer?

bfiedler · January 22, 2013, 10:52

No, I did not find an answer. I have also forgotten the context of my original post, which was from so many years ago.

January 28, 2011, 15:23	precedence of boundary file over blockMeshDict	#1
bfiedler New Member Brian Fiedler Join Date: Jul 2009 Location: Norman, Oklahoma USA Posts: 5 Rep Power: 16	In the OpenFoam tutorials, Allclean deletes the following files in constant/polyMesh: "points", "owner", "neighbour", "faces" but not the file "boundary". The blockMesh utility will overwrite "boundary", but will first read "boundary" and preserve that patch type that is found, igonoring what is found in blockMeshDict. Thus, changing type wall to type cyclic in blockMeshDict will have no effect on type found in the "boundary" file. Options to change file type are to manually delete the "boundary" file (better for newbies to save it by renaming it) or to manually edit it. What is the purpose of the blockMesh utility behaving this way? The official documentation http://www.openfoam.com/docs/user/blockMesh.php does not describe this behaviour.

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January 22, 2013, 07:16		#2
immortality Senior Member Ehsan Join Date: Oct 2012 Location: Iran Posts: 2,208 Rep Power: 26	hi.i have same question.did you find a ratioanal answer?

January 22, 2013, 10:52		#3
bfiedler New Member Brian Fiedler Join Date: Jul 2009 Location: Norman, Oklahoma USA Posts: 5 Rep Power: 16	No, I did not find an answer. I have also forgotten the context of my original post, which was from so many years ago.